Magnetic separator.



I s. NORTON. MAGNETIC SEPABATOB.

APPLIOATIOB IILBD AUG. I 1907.

Patented m 4, 1910.-

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S. NORTON.

MAGNETIC SEPABATOB.

APPIJOATIOI nu ma. 1, 1901.

945,408. Patented Jan. 4,1910.

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V Town whom it may concem:

PATENT orrron.

usr'mrnoiifnonron, or MIN VILLE, NEW YORK a MAGNETIC SEPARATOR.

I: B'e-it knownthat I, Srinwox Noa'rox, a

rcitizen of the United States, residing at 'Mineville,-county' of Essex, and State of New York, have invented certain new and useful Improvements in Magnetic-Separathrs, of which the following is a specification.

The invention relates to such improveintents and consists of the novel construction and combinat onuof parts hereinafter described and subsequently claimed.

1 Reference may be had to the accompanying drawings, and the reference characters markedthereon, wh ch form a part of this Slimlar characters refer to similar parts in the several figures therein.

F ignre 1' of the drawings is a view 1n central, vert1ca1,, long tudinal section of my improved magnetic separator, the plane of the-section being indicated by the broken line 1-.1 in Fig. 2., Fig. 2 is a cross-section ofjthesame taken ,on the broken line 22 in, Fig. 1,1onan enlarged scale with the drum shown in elevation;

Myinvention'consists-in a novel means for se aratingmagnetic from non-magnetic wpartic es, as in the magnetic separation of ron-ore.

I The principal object of my invention is to facilitate the operation of separating mag- I netic from non-magnetic particles, and to 1 secure a .more effective separation of the et'ic' from the non-magnetic particles. ther objects. will appear in connection with the following description.

In carrying out my novel method in the preferred manner, the solid matter to be treated is mixed with liquid, 'as water, to

such a consistency that the mass will flow freely, and the mixture is then caused to I 'flow"downwardly past subjacent magnets,

and the more magnetic particles are attracts U ed tothe bottom of the mixture by gravity and the force of said magnets, while moving in the direction of the flow of the mixture. Referring to the drawings wherein 1s 3 shown: a preferred-form of apparatus for v carrying out my-rnventmn, 1, represents an endless belt, the upper stretch, 2, of which is supported in inclined POSltlOIllJY means of fthe drums, 3 and 4, around which said belt passes,;to one of which drums power may be I J transmitted through the belt-pulley, '6, and

theshaft, 7 upon which said drum is fixed.

The upper stretch of said belt is supported at Specification of Letters Patent; Application filed August 1, 1907. Serial No. 386,518.

Patented Jan. 4, 1910,

intervals by subjacent rollers, 8, having their axes horizontal, and by other rollers, 9, hav

ing their axes inclined and upwardly diverging those on one side" of the belt from those of the other, which rollers areadapted to support in upturned position the side por-' tions of the belt, making the same troughupper stretch of the belt to move down-' wardly. The lower stretch of the belt .is

supported by a plurality of subjacent rollers, 10, upon which the belt rests flatly. The

belt remainssubstantially flat in passing around the drum, 4:, butthe inclined edge:

supporting rollers, 9, are continued part way around the drum, 3, so that the belt is retained in trough-shape,unti1 it begins to pass beneath said drum 3. a y

l ixedly mounted within the drum, 3, and with their poles in close proximity to the shell of said drum, are a plurality of electro-magnets, 12; electro-magnets, 13, are supported in fixed polsition beneath the upper stretch,-2, ot' the is t. a t a The material to be treated is mixed with water to the desired consistency, which should be such that the mass will be .practically fluid with the 'solid particles in a state of semi-suspension, and is then fed by the chute, 14, into the upper end of the trough formed by the upper stretch, 2, of the belt, While said upper stretch of the belt is being moved downwardly, due to the rotation of the drum 3. As the liquid mass passes down the trough formed by the upper stretch of the belt, and past the magnets, 13, the magnetic, particles inthe flowing mass are drawn to the bottom thereof, and to the and' another plurality of i bottom of the trough formed by the ugpgr trough or channel, while the water and non-. magnetic particles pass freely down the chute and escape. By moving the magnetic particles in the same direction as the flowing heretofore done.

mass, and simply retarding their movement, I am able to secure elfective separation without lifting the magnetic particles up through the mass ofwater and gangue particles flowing in the opposite direction, as has been As the upper stretch of the belt continues to move downwardly to-' ward the drum, 3, it carries with it in the same direction of the flow of the liquidmixture the magnetic particles which have been caused to be deposited upon the belt by the attractive forces of gravitationand of the electro-magnets, which deposited particles are held firmly to the belt by the attractive force of the electro-magnets, 12, and are thereby carried around the drum, 3, to a point somewhat in rear of said. drum, where, as said particles are carried beyond the infiuefiife of the electro-magnets, 12, they fall by gravity upon the ground or a receptacle placed to receive them, the particles so deposited constituting theconcentrates or mag .netic particles of the material under treatment.

To facilitate the depositing of the sepa rated magnetic particles, I have provided a heater, 15, the-arms ofwhich are adapted to engage at intervals the upper surface of the lower stretch of the belt just in rear of the drum, 3, said beater being rotatively mounted and driven by a belt connection, 16, with the shaft, 7 of the drum 3.

The magnets may be all-of the same polarity, but I prefer to have them alternate in polarity,so as to cause the attracted'particles to be inverted or rotated in passing from one magnet to the next, the movement of magnetic particles so induced tending, in

connection with the flowing liquid, to free them from non-magnetic particles which might adhere thereto.

Any known form of magnets may-be em ployed in my improved apparatus, and in I said conveyer downward toward said drum;

magnets subjacent to said channeled conveyer in advance of said drum, means for feeding a mixture of ore and liquid to the conveyer'; and means for separately collecting the separated components near the lower end.

2. In a magnetic separator, and in combination, a drum; a roller at a higher level.

than said drum; an endless belt passing around said drum and roller; means for maintaining the upper stretch of said belt in channeled form; magnets subjacen-t to said .upper stretch of belt; magnets within said drum; means for causing a downward movement of the upper stretch of said belt, means i for feeding a mixture of ore and liquid to the belt; and means for separately collecting 'the separated components near the lower end. In testimony whereof, I have hereunto set my hand this 29th day of July,1907.

SHELDON NORTON lVitnesses GEO. H. SPnINe,

, ,R. J. BIGLEY. 

